PHARMACOLOGY- DOSAGE CALCULATION PRACTICAL Answer the following
PHARMACOLOGY- DOSAGE CALCULATION PRACTICAL Answer the following questions and SHOW ALL THE FORMULAR FOR ARRIVING AT YOUR ANSWERS. All the calculating formular should be shown. Change to equivalents within the system: a. 100 mg = ________ g b. 1500g = _______mg c. 0.1L = ______mL d. 500mL = ______L Convert to units in the metric system: a. 150 gr= _______g b. ¼ gr = ________mg c. 45 min = ______ mL d. 2 qt = _______L Convert to units in the household system: a. 5mL = ______ tsp b. 30mL = _____ tbsp. Covert the weights in the following problems: a. A patient weighs 200 lb. What is the patient’s weight in kilograms? b. A patient weighs 2200g. What is the patient’s weight in pounds? Choose the correct answer in each case: A. Digoxin 0.125mg is ordered for a patient who is having trouble swallowing. The bottle of digoxin elixir reads 0.5mg/2mL. How much would you give? a. 5mL b. 0.5mL c. 1.5mL d. 1mL B. The usual adult dose of Benadryl is 50mg. What would be the safe dose for a child weighing 27 lb? a. 0.9mg b. 1.8mg c. 9.0mg d. 18mg C. An order is written for 1000mL of normal saline to be administered over 10 hours. The drug factor on the IV tubing states 15 drops/mL. What is the IV flow rate? a. 50mL/hr at 50 drops/min b. 100mL/hr at 25 drops/min c. 100mL/hr at 100 drops/min d. 100mL/hr a5 15 drops/min D. A patient needs to take 0.75g of tetracycline PO. The drug comes in 250mg tablets. How many tablets should the patient take? a. 2 tablets b. 3 tablets c. 4 tablets d. 10 tablets E. Aminophylline is supplied in a 500mg/2.5mL solution. How much would be given if an order was written for 100mg aminophylline IV? a. 5mL b. 1.5mL c. 2.5mL d. 0.5mL F. Heparin 800U is ordered for a patient. The heparin is supplied in a multidose vial that is labelled 10,000U/mL. How many cubic centimeters of heparin would be needed to treat this patient? a. 0.8cc b. 0.08cc c. 8.0cc d. 0.4cc The physician orders 1.5 liters of lactated Ringers solution to be administered to your patient over the next 12 hours. Calculate the flow rate if the IV tubing delivers 20gtt/mL. Order: Amoxicillin 0.25g PO every 8 hours. Available: Amoxicillin 125mg tablets. How many tablets will the nurse give per dose? Order: Zofran 8mg PO t.i.d. Available: Zofran in 100mL bottle labelled 4mg/tsp. How many mL will the nurse administer for each dose? Order: Give Fortaz 80mg/kg PO tid to a child who weighs 25.5kg. Fortraz is available in an oral suspension labelled 100mg/mL. How many mL should the nurse administer per dose? What volume is required for an injection X, if 500mg is ordered and stock ampules contain 200mg/mL? What volume is required for an injection Y, if 750mg is ordered and stock ampules contain 125mg/mL? A dose of 4500mg of medication has been ordered for a patient. The medication comes in 5g/mL. What volume will you give the patient? A patient weighs 45kg and is prescribed a medication for 3mg/kg/dose. The stock strength is 2mg/0.5mL. What volume will you give the patient? A 3800g infant is ordered a medication for 0.6mg/kg/day over 6 doses per day. How much will you give the patient per day? An IV drip has a drop factor of 60gtt/mL. The volume to be administered is 180mL over 5 hours. How many drops per minute will it be? Doctor orders 300mL of ampicillin 75mg to infuse over 40 minutes. Drip factor: 20gtt/mL. Calculate the drip rate. A child weighs 14.4kg and is prescribed 300µg/kg of medication W. How much of W should be given? You have an order to give 120 units of vitamin D. If the vitamin comes in capsules containing 60 units, how many capsules will you give? Doctor orders Amoxicillin for a child that weighs 63 pounds. The safe dosage range for this medication is 50mg/kg/day every 8 hours. What is the safe dose for this child per dose? Doctor orders Zithromax for a child that weighs 82 pounds. The safe dose range for this medication is 10-12mg/kg/day. Is this a safe dose for this patient? Doctor orders cefazolin 350mg IV every 4 hours. The child weighs 31 pounds. The safe dosage range for this medication is 25-75mg/kg/day. Is this a safe dose for this patient? Order: ampicillin 100mg IV q6h Child weighs: 11.5kg Safe ranges 25-100mg/kg/day divided every 6 hours Available: reconstitute with 0.9mL of sterile water. Yields 125mg/mL a) How many mL will deliver 100mg? b) What is the safe dose range for this patient?
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